-3277

Appears in sequences

• Expansion of 1/(1-x+2*x^3).at n=27A077950
• Row sums of triangle A118407.at n=26A118408
• a(n)=-a(n-1)+2a(n-3).at n=23A137426
• a(n)=-a(n-1)+2a(n-3).at n=28A137426
• a(n) = (-1)^(n-3)*binomial(n,3) - 1.at n=25A216414